Air tightness detection equipment for automobile pipeline

Abstract

The utility model discloses an automobile pipeline air tightness detection device which comprises a detection water tank horizontally placed on the ground, a transparent observation window is fixedly installed on the surface of the front side of the detection water tank, and two supporting columns are symmetrically and fixedly installed on the left side and the right side of the upper surface of the detection water tank. A left supporting column and a right supporting column are arranged on the base, a first supporting frame which is transversely arranged is installed between the left supporting column and the right supporting column, a fixing ring is fixedly installed in the middle of the first supporting frame, an automobile pipeline body needing air tightness detection is arranged in the fixing ring, and a lifting mechanism for driving the fixing ring to move up and down is installed in the supporting columns. According to the automobile pipeline air tightness detection equipment, a novel structural design is adopted, the cleaning mechanism is installed in the detection water tank, and when an automobile pipeline body enters the detection water tank, a cleaning brush in the cleaning mechanism is used for cleaning the outer surface of the automobile pipeline body, so that sundries attached to the surface are removed; and the subsequent air tightness detection result is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline air tightness inspection, in particular to an air tightness inspection device for automobile pipelines. Background Art

[0002] Automobile pipeline is a very important component in the car. It is used for exhaust gas emission or engine air intake and air supply of air conditioner. Pipeline is generally produced by welding. In order to ensure the normal use of pipeline, its air tightness needs to be tested before leaving the factory to avoid leakage during subsequent use.

[0003] In the prior art, a Chinese patent with publication number CN211668711U discloses an automobile pipeline air tightness detection device, comprising a first shell, a third plate body welded to the upper surface of the first shell, the outer wall of the third plate body welded to the first plate body, the inner wall of the first plate body is provided with a slide groove, the inner wall of the slide groove is slidably connected to the second plate body, the inner wall of the third plate body is slidably connected to the fourth rod body, one end of the fourth rod body is welded to a first handle, and the end of the fourth rod body away from the first handle is welded to the outer wall of the second plate body to prevent shaking during detection, avoid unstable connection at the connection, ensure that the air tightness detection work is not affected, set a first square water box and a water tank, can intuitively observe the location of poor air tightness, record the places where problems are prone to occur in the pipeline, facilitate confirmation of technical deficiencies, make adjustments to the design scheme, and have a good detection effect.

[0004] During use, the above-mentioned device checks the air tightness by placing the pipeline in a water tank and observing the bubbles. However, in actual use, some impurities (such as welding slag and dust during welding) will inevitably adhere to the surface of the pipeline during the production process. If these impurities are not cleaned, they may block the leakage position of the pipeline and cause misjudgment during the air tightness inspection. Utility Model Content

[0005] The utility model aims to provide an air tightness detection device for automobile pipelines, so as to solve the problem of misjudgment caused by impurities blocking the leakage position in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an automobile pipeline air tightness detection device, comprising a detection water tank horizontally placed on the ground, a transparent observation window fixedly installed on the front surface of the detection water tank, and further comprising:

[0007] Two support columns are symmetrically fixedly installed on the left and right sides of the upper surface of the detection water tank, and a first support frame arranged horizontally is installed between the left and right support columns, and a fixing ring is fixedly installed in the middle position of the first support frame, and the automobile pipeline body that needs to be tested for air tightness is arranged inside the fixing ring, and a lifting mechanism that drives the fixing ring to move up and down is installed inside the support column;

[0008] A cleaning mechanism for cleaning the surface of the automobile pipeline body is installed inside the detection water tank. The cleaning mechanism includes a rotating ring located inside the detection water tank and a cleaning brush fixedly installed on the inner wall of the rotating ring.

[0009] Preferably, the lifting mechanism comprises a guide slide rod and a transmission screw rod respectively installed inside the left and right support columns, and the transmission screw rod is rotationally connected to the support column.

[0010] Preferably, a first sliding block is installed through the outside of the guide slide rod and the transmission screw rod, and the transmission screw rod and the first sliding block are threadedly connected, and the first sliding block and the first support frame are fixedly connected.

[0011] Preferably, a fixing bolt for squeezing and fixing the automobile pipeline body is threadedly installed on the side surface of the fixing ring, and a blower is fixedly installed in the middle of the first support frame, and the blower is connected to the automobile pipeline body through an air pipeline installed outside it.

[0012] Preferably, a camera is fixedly mounted at the middle position of the inner wall of the detection water tank, and second support frames arranged laterally are fixedly mounted at the upper ends of the inner walls on the left and right sides of the detection water tank.

[0013] Preferably, a second sliding block is fixedly mounted on the top of the second support frame, and an embedded sliding structure is formed between the second sliding block and a limiting sliding groove provided on the outer surface of the rotating ring.

[0014] Preferably, a driven gear is fixedly mounted on the upper end of the outer surface of the rotating ring to drive the rotating ring to rotate, and a driving gear is meshedly connected to the side of the driven gear, and the driving gear and the transmission screw are coaxially fixedly mounted.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the air tightness detection equipment for automobile pipelines adopts a new structural design, and its specific contents are as follows:

[0016] 1. Use a fixing ring to clamp and fix the main body of the automobile pipeline. After placing the upper end of the main body of the automobile pipeline into the fixing ring, turn the fixing bolt so that the fixing bolt forms an extrusion clamping force on the main body of the automobile pipeline. This method can clamp and fix automobile pipelines of different diameters;

[0017] Furthermore, after the automobile pipeline body is clamped, the first slider installed with a thread penetrating through the outside is rotated by the transmission screw to drive the first mounting frame to move downward synchronously, thereby automatically placing the automobile pipeline body into the detection water tank for air tightness detection.

[0018] 2. Install a cleaning mechanism inside the test water tank. When the main body of the automobile pipeline enters the test water tank, use the cleaning brush in the cleaning mechanism to clean the outer surface of the main body of the automobile pipeline, so as to remove the debris attached to the surface and avoid affecting the results of subsequent air tightness testing;

[0019] Furthermore, the transmission screw drives the driving gear at the lower end to rotate synchronously during the rotation process, so that the driven gear meshing with the driving gear drives the rotating ring to rotate, thereby improving the cleaning effect of the automobile pipeline body;

[0020] Furthermore, the rotating ring is supported and installed by the second supporting frame, and during the rotation of the rotating ring, the second sliding block at the front end of the second supporting frame slides correspondingly inside the limiting sliding groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the partial cross-sectional structure of the support column of the utility model;

[0023] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the detection water tank of the utility model;

[0025] Figure 5 For this utility model Figure 4 The enlarged structural diagram at B in the middle;

[0026] Figure 6 This is a schematic diagram of the cleaning brush structure of the utility model;

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the rotating ring of the utility model.

[0028] In the figure: 1. detection water tank; 2. observation window; 3. support column; 4. first support frame; 5. fixing ring; 6. automobile pipeline body; 7. fixing bolt; 8. blower; 9. gas pipeline; 10. transmission screw; 11. guide slide bar; 12. first slide block; 13. camera; 14. rotating ring; 15. cleaning brush; 16. second support frame; 17. second slide block; 18. limiting slide groove; 19. driven gear; 20. driving gear. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1: Please refer to Figure 1 and Figure 2 In order to solve the problem of installing and fixing pipelines of different diameters, the present embodiment provides the following scheme, which specifically discloses: a detection water tank 1 is horizontally placed on the ground, a transparent observation window 2 is fixedly installed on the front surface of the detection water tank 1, two support columns 3 are symmetrically fixedly installed on the left and right sides of the upper surface of the detection water tank 1, and a first support frame 4 arranged horizontally is installed between the left and right support columns 3, and a fixing ring 5 is fixedly installed in the middle position of the first support frame 4, an automobile pipeline body 6 that needs to be tested for air tightness is arranged inside the fixing ring 5, and a fixing bolt 7 for squeezing and fixing the automobile pipeline body 6 is threadedly installed on the side of the fixing ring 5, and a blower 8 is fixedly installed in the middle of the first support frame 4, and the blower 8 is connected to the automobile pipeline body 6 through a gas pipeline 9 installed outside it.

[0031] When using the device, first seal the bottom end of the automobile pipeline body 6 that needs to be tested for air tightness (such as inserting plasticine or adding a sealing cover, etc.), then put it into the fixing ring 5, and then screw the fixing bolt 7 to move the front end of the fixing bolt 7 toward the inside of the fixing ring 5, and finally clamp and fix the automobile pipeline body 6. After the fixing is completed, connect the front end of the gas pipeline 9 to the upper end of the automobile pipeline body 6.

[0032] Example 2: Please refer to Figure 2 and Figure 3 In order to solve the problem of detecting the air tightness of the pipeline, the present embodiment provides the following solution, which specifically discloses: a lifting mechanism for driving the fixing ring 5 to move up and down is installed inside the support column 3, and the lifting mechanism includes a guide slide bar 11 and a transmission screw 10 respectively installed inside the left and right support columns 3, and the transmission screw 10 is rotatably connected to the support column 3, and a first slider 12 is installed through the outside of the guide slide bar 11 and the transmission screw 10, and the transmission screw 10 is threadedly connected to the first slider 12, and the first slider 12 is fixedly connected to the first support frame 4.

[0033] After the automobile pipeline main body 6 is fixed, the motor at the upper end of the support column 3 is turned on, so that the motor drives the transmission screw 10 to rotate. At this time, the first slider 12 installed with a thread passing through the outside of the transmission screw 10 drives the first support frame 4 to move downward (the first slider 12 at the other end slides correspondingly outside the guide slide bar 11), so that the first support frame 4 puts the automobile pipeline main body 6 into the detection water tank 1 (the detection water tank 1 is pre-injected with an appropriate amount of clean water) under the action of the fixing ring 5, and then turns on the blower 8, which delivers air to the inside of the automobile pipeline main body 6 through the air pipeline 9. If there is a leak in the automobile pipeline main body 6, bubbles will appear at this position, and the staff can observe it through the observation window 2.

[0034] Example 3: Please refer to Figure 4 and Figure 7 In order to solve the problem that the subsequent air tightness test results are affected by the debris attached to the pipeline surface, the present embodiment provides the following scheme, wherein a cleaning mechanism is provided, and the surface of the automobile pipeline body 6 is automatically cleaned by the cleaning mechanism when the automobile pipeline body 6 enters. Specifically, the following scheme is disclosed: a cleaning mechanism for cleaning the surface of the automobile pipeline body 6 is installed inside the detection water tank 1, and the cleaning mechanism includes a rotating ring 14 located inside the detection water tank 1 and a cleaning brush 15 fixedly installed on the inner wall of the rotating ring 14; a camera 13 is fixedly installed at the middle position of the inner wall of the detection water tank 1, and a second support frame 16 arranged laterally is fixedly installed on the upper ends of the inner walls on both sides of the detection water tank 1, a second slider 17 is fixedly installed on the top of the second support frame 16, and an embedded sliding structure is formed between the second slider 17 and a limiting slide groove 18 provided on the outer surface of the rotating ring 14, and a driven gear 19 is fixedly installed on the upper end of the outer surface of the rotating ring 14 to drive it to rotate, and a driving gear 20 is meshedly connected to the side of the driven gear 19, and the driving gear 20 is coaxially fixedly installed with the transmission screw 10.

[0035] When the automobile pipeline body 6 enters the detection water tank 1, the transmission screw 10 drives the driving gear 20 coaxially fixedly installed at its bottom end to rotate. At this time, the driven gear 19 meshing with the driving gear 20 drives the rotating ring 14 to rotate, so that the cleaning brush 15 inside the rotating ring 14 is used to clean the outer surface of the automobile pipeline body 6. During the rotation of the rotating ring 14, the second slider 17 at the front end of the second support frame 16 slides accordingly inside the limiting slide groove 18.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile pipeline air tightness testing device, comprising a testing water tank (1) placed horizontally on the ground, wherein a transparent observation window (2) is fixedly mounted on the front surface of the testing water tank (1), characterized in that: Also includes: Two support columns (3) are symmetrically fixedly installed on the left and right sides of the upper surface of the detection water tank (1), and a first support frame (4) is installed transversely between the left and right support columns (3), and a fixing ring (5) is fixedly installed in the middle position of the first support frame (4), and a vehicle pipeline body (6) that needs to be tested for air tightness is arranged inside the fixing ring (5), and a lifting mechanism that drives the fixing ring (5) to move up and down is installed inside the support column (3); A cleaning mechanism for cleaning the surface of a vehicle pipeline body (6) is installed inside the detection water tank (1), and the cleaning mechanism comprises a rotating ring (14) located inside the detection water tank (1) and a cleaning brush (15) fixedly installed on the inner wall of the rotating ring (14).

2. The air tightness detection device for automobile pipelines according to claim 1 is characterized in that: The lifting mechanism comprises a guide slide rod (11) and a transmission screw rod (10) respectively installed inside two left and right support columns (3), and the transmission screw rod (10) is rotationally connected to the support column (3).

3. The air tightness detection device for automobile pipelines according to claim 2 is characterized in that: A first sliding block (12) is installed through the outside of the guide slide rod (11) and the transmission screw rod (10), the transmission screw rod (10) and the first sliding block (12) are threadedly connected, and the first sliding block (12) and the first support frame (4) are fixedly connected.

4. The air tightness detection device for automobile pipelines according to claim 3 is characterized in that: A fixing bolt (7) for squeezing and fixing the vehicle pipeline body (6) is threadedly mounted on the side surface of the fixing ring (5), and a blower (8) is fixedly mounted in the middle of the first support frame (4), and the blower (8) is connected to the vehicle pipeline body (6) via an air delivery pipeline (9) mounted outside the blower (8).

5. The air tightness detection equipment for automobile pipelines according to claim 1 is characterized in that: A camera (13) is fixedly mounted in the middle of the inner wall of the detection water tank (1), and transversely arranged second support frames (16) are fixedly mounted on the upper ends of the inner walls on the left and right sides of the detection water tank (1).

6. The air tightness detection equipment for automobile pipelines according to claim 5 is characterized in that: A second sliding block (17) is fixedly mounted on the top of the second support frame (16), and an embedded sliding structure is formed between the second sliding block (17) and a limiting sliding groove (18) provided on the outer surface of the rotating ring (14).

7. The air tightness detection equipment for automobile pipelines according to claim 6 is characterized in that: A driven gear (19) is fixedly mounted on the upper end of the outer surface of the rotating ring (14) to drive the rotating ring (14) to rotate, and a driving gear (20) is meshingly connected to the side of the driven gear (19), and the driving gear (20) and the transmission screw (10) are coaxially fixedly mounted.

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